68195772 has 36 divisors (see below), whose sum is σ = 182525616. Its totient is φ = 21394560.

The previous prime is 68195767. The next prime is 68195779. The reversal of 68195772 is 27759186.

68195772 is a `hidden beast` number, since 68 + 19 + 577 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68195779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55104 + ... + 56327.

It is an arithmetic number, because the mean of its divisors is an integer number (5070156).

Almost surely, 2^68195772 is an apocalyptic number.

It is an amenable number.

68195772 is an abundant number, since it is smaller than the sum of its proper divisors (114329844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68195772 is a wasteful number, since it uses less digits than its factorization.

68195772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111458 (or 111453 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 68195772 is about 8258.0731408725. The cubic root of 68195772 is about 408.5568377223.

The spelling of 68195772 in words is "sixty-eight million, one hundred ninety-five thousand, seven hundred seventy-two".